While complete elimination of mature stretch marks is unlikely with any non-surgical treatment, GHK-Cu can visibly improve their appearance and texture over several cycles, particularly when combined with consistent topical application to the affected areas
Instead of a capsule, it comes in a fine mist spray that you use under the tongue, making it a convenient option for people who prefer not to take pills
Translation to human clinical application has been narrower than the breadth of the preclinical literature would suggest
But specific situations call for different approaches
Ufnalska I, Drew SC, Zhukov I, Szutkowski K, Wawrzyniak UE, Wroblewski W, et al
Intravenous glutathione can reach higher, more predictable levels with maximum bioavailability